薄帶雙輥連鑄水口電磁制動與復(fù)合式電磁側(cè)封研究.pdf

1、上海大學(xué)碩士學(xué)位論文薄帶雙輥連鑄水口電磁制動與復(fù)合式電磁側(cè)封研究姓名：李啟勝申請學(xué)位級別：碩士專業(yè)：鋼鐵冶金指導(dǎo)教師：鄧康任忠鳴20060401上海大學(xué)碩士學(xué)位論文ABSTRICTElectromagnetictechnologyhasbeenwidelyappliedincastingprocessandalsoinvestigationforimprovingqualityoffinishedproductbyusingcharac

2、teristicsofelectromagneticmechanics，suchaselectromagneticconfinement，electromagneticbrake，electromagneticstirhasprogressedgreatlyControllingdistributionandfluctuationofmoltenmetalintwin—rollpoolandsealingtwosidesoftwinro

3、llsastwocriticaltechnologiesintwinrollstripcastingdevelopedSOslowlythattheyhavebecomeabottlenecktoseverelyholdbacktheprocessdevelopmentⅥmereasElectromagnetictechnologySuccessinmetallurgyfield，suchassteelrefiningslabcasti

4、ng，weattempttoapplyelectromagneticforcetotwinrollstripcastingandinvestigatefeasibilitiesofnozzleelectromagneticbraken、iEMBr)andelectromagneticdam(EMD)coupledwithasoliddamonthebaseofpredecessor’SefrortAmodelforsimulatings

5、uppressionof1evelfluctuationinmoldoftwinmllstripcasterwithN—EMBrieimposedastationarymagneticfieldanddirectcurrentinnozzlewasestablishedMomentumofmetalliquidinnozzleandlevelfiuctuationintwinrollpoolweremeasuredunderdiffer

6、entconditions，includingtheimmergingdepthofnozzle，currentandmagneticfieldTheexperimentresultsshowedthatmomentumofliquidmetalamplitudeandfrequencyoffluctuationallweredecreasedwithcurrentincreasingItwasfoundthatN—EMBrtechni

7、queforfluctuationsuppressioniSeffectivetotwinr01lstripcastingmoldAnothermodelforinvestigatingthecontaiamentofmoltenmetalpuddleinatwin—rollcasterwithEMDcoupledwithasoliddamwasestablishedMagneticfluxdensitydistributionofel

8、ectromagneticfieldalongtheyokewasmeasuredExplerimentresultshOWSthatEMDcoupledwiththeinsideferromagneticdamwasmoreeffoctivethanthatonescoupledwithnoneorinsidevinylchloridedamorwiththeoutsideferromagneticdamThecontainmenth

9、ei【ghtofmoltenmetaliSincreasedlinearlywiththecurrentincreasingThefluctuationonthesurfaceofmoltenmetalwasanalyzedalsoKeywords：thinstripofmetal，continuouscastingwithtwinrolls，nozzle，electromagneticbraking，electromagneticda